EP2974562B1 - Thermal isolation in printed circuit board assemblies - Google Patents

Thermal isolation in printed circuit board assemblies Download PDF

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Publication number
EP2974562B1
EP2974562B1 EP14715739.0A EP14715739A EP2974562B1 EP 2974562 B1 EP2974562 B1 EP 2974562B1 EP 14715739 A EP14715739 A EP 14715739A EP 2974562 B1 EP2974562 B1 EP 2974562B1
Authority
EP
European Patent Office
Prior art keywords
circuit board
printed circuit
conductive
conductive layers
functional area
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Not-in-force
Application number
EP14715739.0A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP2974562A1 (en
Inventor
Yang Zhang
Jack B. Steenstra
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Qualcomm Inc
Original Assignee
Qualcomm Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Qualcomm Inc filed Critical Qualcomm Inc
Publication of EP2974562A1 publication Critical patent/EP2974562A1/en
Application granted granted Critical
Publication of EP2974562B1 publication Critical patent/EP2974562B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K1/00—Printed circuits
    • H05K1/02—Details
    • H05K1/0296—Conductive pattern lay-out details not covered by sub groups H05K1/02 - H05K1/0295
    • H05K1/0298—Multilayer circuits
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K1/00—Printed circuits
    • H05K1/02—Details
    • H05K1/0201—Thermal arrangements, e.g. for cooling, heating or preventing overheating
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K7/00—Constructional details common to different types of electric apparatus
    • H05K7/02—Arrangements of circuit components or wiring on supporting structure
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
    • H05K2201/09—Shape and layout
    • H05K2201/09209—Shape and layout details of conductors
    • H05K2201/09654—Shape and layout details of conductors covering at least two types of conductors provided for in H05K2201/09218 - H05K2201/095
    • H05K2201/09663—Divided layout, i.e. conductors divided in two or more parts
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
    • H05K2201/09—Shape and layout
    • H05K2201/09209—Shape and layout details of conductors
    • H05K2201/09654—Shape and layout details of conductors covering at least two types of conductors provided for in H05K2201/09218 - H05K2201/095
    • H05K2201/09709—Staggered pads, lands or terminals; Parallel conductors in different planes
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
    • H05K2201/09—Shape and layout
    • H05K2201/09818—Shape or layout details not covered by a single group of H05K2201/09009 - H05K2201/09809
    • H05K2201/09972—Partitioned, e.g. portions of a PCB dedicated to different functions; Boundary lines therefore; Portions of a PCB being processed separately or differently
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
    • H05K2201/10—Details of components or other objects attached to or integrated in a printed circuit board
    • H05K2201/10007—Types of components
    • H05K2201/10098—Components for radio transmission, e.g. radio frequency identification [RFID] tag, printed or non-printed antennas
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
    • H05K2201/10—Details of components or other objects attached to or integrated in a printed circuit board
    • H05K2201/10007—Types of components
    • H05K2201/10151—Sensor
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49002—Electrical device making
    • Y10T29/49117—Conductor or circuit manufacturing
    • Y10T29/49124—On flat or curved insulated base, e.g., printed circuit, etc.
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49002—Electrical device making
    • Y10T29/49117—Conductor or circuit manufacturing
    • Y10T29/49124—On flat or curved insulated base, e.g., printed circuit, etc.
    • Y10T29/4913—Assembling to base an electrical component, e.g., capacitor, etc.

Definitions

  • aspects of the present disclosure relate generally to printed circuit board assemblies, and more particularly, to thermally isolating heat generated from circuitry located on a printed circuit board within a printed circuit board assembly.
  • Printed circuit boards include multiple conductive layers interleaved with multiple dielectric layers. Each conductive layer is typically formed into one or more pathways (known as traces) to provide a path for an electric current. Electronic components are attached to the printed circuit board and electrically connected to the traces forming a printed circuit board assembly.
  • Printed circuit board assemblies are utilized in a wide range of electrical and electronic equipment including both handheld and non-handheld devices. These devices have been utilized to monitor and/or measure a variety of parameters for physiological, subjective, and environmental conditions. The devices can be configured to store data related to the parameters and/or transmit, either wired or wirelessly, the data to another device.
  • a handheld device can be used to measure the blood glucose level of an individual.
  • the handheld device can include a module that measures the blood glucose along with circuitry that facilitates wireless data communications.
  • the heat generated from the circuitry can cause a temperature elevation in the blood glucose measurement. Any temperature elevation in the blood glucose measurement from the ambient temperature will cause inaccurate readings in the blood glucose measurements, which could have adverse effects on the individuals.
  • the disclosure provides a printed circuit board assembly for reducing the impact of heat generated from circuitry within a handheld or non-handheld device.
  • a printed circuit board assembly according to the invention is defined in claim 10.
  • the misaligned gaps form a curvature pattern. In another example, the misaligned gaps form a pattern of integrally connected straight segments.
  • the first portion of a conductive layer may be substantially thermally isolated from the second portion of the conductive layer. Furthermore, the first portion of a conductive layer may be shorter than the second portion of the conductive layer and at least some first portions of the plurality of conductive layers are of the same length.
  • the printed circuit board assembly may further include a wireless communication module, integrally connected to and in communication with the printed circuit board, adapted to establish a wireless communication link with an external device and a data collection module integrally connected to and in communication with the printed circuit board.
  • a wireless communication module integrally connected to and in communication with the printed circuit board, adapted to establish a wireless communication link with an external device and a data collection module integrally connected to and in communication with the printed circuit board.
  • a ground plane may be formed upon a layer of the printed circuit board and one or more RF capacitors may be connected to the ground plane allowing signals at RF frequencies to pass through the one or more RF capacitors maintaining continuity of the ground plane.
  • a metal trace may be connected to the ground plane creating a DC connection.
  • the disclosure provides a method of manufacturing a printed circuit board assembly.
  • the method according to the invention is defined in claim 1.
  • the method may further include providing a wireless communication module, integrally connected to and in communication with the printed circuit board, adapted to establish a wireless communication link with an external device and providing a data collection module integrally connected to and in communication with the printed circuit board.
  • the method may also include providing one or more RF capacitors connected to a ground plane allowing signals at RF frequencies to pass through the one or more RF capacitors maintaining continuity of the ground plane.
  • a metal trace may be provided and connected to the ground plane creating a DC connection.
  • the disclosure provides a printed circuit board assembly.
  • the printed circuit board assembly comprises a printed circuit board which includes a plurality of conductive means; and a plurality of dielectric means, each dielectric means of the plurality of dielectric means disposed between a pair of conductive means in the plurality of conductive means.
  • Each conductive means in the plurality of conductive means includes a first portion and a second portion separated by a gap; and gaps in alternating conductive means are misaligned.
  • the printed circuit board may further include a wireless communication means, integrally connected to and in communication with the printed circuit board, adapted to establish a wireless communication link with an external device and a data collection means integrally connected to and in communication with the printed circuit board.
  • a ground plane may be formed upon a layer of the printed circuit board and one or more RF capacitors may be connected to the ground plane allowing signals at RF frequencies to pass through the one or more RF capacitors maintaining continuity of the ground plane.
  • a metal trace may be connected to the ground plane creating a DC connection.
  • handheld device may refer to a wireless device, a mobile device, a mobile phone, a mobile communication device, a user communication device, personal digital assistant, mobile palm-held computer, a laptop computer, remote control and/or other types of mobile devices typically carried by individuals and/or having some form of communication capabilities (e.g., wireless, infrared, short-range radio, etc.).
  • non-handheld device may refer to any device or piece of equipment containing a printed circuit board.
  • While the present disclosure is described primarily with respect to isolating heat generated from circuit in one functional area of a printed circuit board from other functional areas in the printed circuit board, this is by way of example only.
  • the present disclosure may be applied and adapted to various types of handheld and non-handheld devices having one or more printed circuit boards.
  • the present disclosure is described with respect to isolating heat generated from wireless circuitry in a printed circuit board from data collection modules for collecting or measuring data, such as blood glucose modules, on the printed circuit board located within a handheld device.
  • the present disclosure may be applied to any type of data collection module for collecting or measuring data in which the data will be affected by temperature elevation due to heat generated from the circuitry, such as a wireless communication module, in the handheld.
  • the data can include, but is not limited to, a variety of parameters for physiological, subjective, and environmental conditions.
  • a variety of other embodiments are contemplated having different combinations of the below described features of the present disclosure, having features other than those described herein, or even lacking one or more of those features. As such, it is understood that the disclosure can be carried out in various other suitable modes.
  • the present disclosure may also be applied and adapted to various non-handheld devices or equipment for heat mitigation or isolation between one or more portions of a printed circuit board within the non-handheld devices or equipment.
  • a central processing unit (CPU) in a computer may be isolated from other electronics that are temperature sensitive as the CPU is typically a large source of heat.
  • a printed circuit board assembly for reducing the impact of heat generated from circuitry within a handheld or non-handheld device.
  • the printed circuit board assembly may include a printed circuit board comprising a plurality of conductive layers and a plurality of dielectric layers where each dielectric layer is disposed between a pair of conductive layers.
  • Each conductive layer may include a first portion and a second portion separated by a gap where the gaps in the alternating conductive layers are misaligned. The first portion of each conductive layer may be substantially thermally isolated from the second portion of each conductive layer.
  • FIG. 1 illustrates a top view of a typical printed circuit board assembly.
  • the printed circuit board assembly 100 includes a data collection module 102, such as a blood glucose module, located on top of and next to circuitry 104, such as wireless communication circuitry.
  • the blood glucose module 102 may be utilized for performing a blood glucose measuring function and the circuitry 104, i.e. a wireless communication module, may be adapted for establishing a wireless communication link with an external device and exchanging information with the external device via the wireless communication link.
  • the blood glucose module 102 and the wireless communication module 104 are physically-separate units electrically connected in order to allow for an exchange of electrical signals corresponding to information to be transmitted by the wireless communication module and/or information received by the wireless communication module 104.
  • FIG. 2 illustrates a cross-sectional view a typical printed circuit board assembly 200 having a blood glucose module 202 located on top of a printed circuit board 204.
  • the printed circuit board 204 includes a plurality of conductive layers 206 and a plurality of dielectric layers 208. Each dielectric layer 208 is interposed between adjacent conductive layers 206 to form a body 210 of alternate conductive layers 206 and dielectric layers 208.
  • a wireless communication module 214, or other electrical circuitry, is attached to the printed circuit board 304. During operation, the wireless communication module 214 generates heat which is then propagated along the conductive layers 206 to the data collection module 202. The elevation in temperature can cause inaccurate readings or measurement in data collected by the data collection module 202.
  • FIG. 3 illustrates a cross-sectional view a printed circuit board assembly for reducing the impact of heat generated from circuitry located on a printed circuit board, according to one example.
  • the printed circuit board assembly 300 may include a data collection module 302 located on top of a printed circuit board 304.
  • the printed circuit board 304 may include a plurality of conductive layers 306 and a plurality of dielectric layers 308. Each dielectric layer 308 may be interposed between adjacent conductive layers 306 to form a body 310 of alternate conductive layers 306 and dielectric layers 308.
  • the conductive layers 306 may comprise any conductive material such as metal, for example copper.
  • the conductive layers may be etched or otherwise formed into conductive pathways, known as traces.
  • a wireless communication module 316 may be attached to one or both sides of the printed circuit board 304.
  • the wireless communication module 310 may generate heat which is then propagated along the conductive layers 306.
  • the conductive layers 306 may be separated into two (2) separate functional areas 306a and 306b.
  • thermal isolation may be achieved by having a slot or gap 320 in the conductive layers 306 so that the heat 314 from the second functional area 306b does not propagate to the first functional area 306a and as a result the data collection module 302. In other words, heat may not propagate freely along the conductive layers.
  • the mechanical strength of the printed circuit board may be compromised. As such, the printed circuit board assembly 300 may break in half along the area or gap 312 where there is no conductive material.
  • FIG. 4 illustrates a cross-sectional view a printed circuit board assembly for reducing the impact of heat generated from the circuitry located on a printed circuit board, according to one example.
  • the printed circuit board assembly 400 may include a data collection module 402 located on top of a printed circuit board 404.
  • the printed circuit board 404 may include a plurality of conductive layers 406a-406f and a plurality of dielectric layers 408. Each dielectric layer 408 may be interposed between adjacent conductive layers 406 to form a body 410 of alternate conductive layers 406 and dielectric layers 408.
  • the conductive layers 406 may comprise any conductive material such as metal, such as copper.
  • the conductive layers may be etched or otherwise formed into conductive pathways, known as traces.
  • a wireless communication module 410 may be attached to one or both sides of the printed circuit board 404. During operation, the wireless communication module 410 may generate heat which is then propagated along the conductive layers 406.
  • each of the conductive layers 406 may include a first portion 406a and a second portion 406b separated by a gap 412.
  • the first portion 406a may have a first length and the second portion 406b may have a second length and the second length may be longer than the first length.
  • the first portion 406a of each conductive layer may be substantially thermally isolated from the second portion 406b of each conductive layer.
  • the lengths of the first portions of some, but not all of the conductive layers are the same.
  • the lengths of the first portions 406a of the conductive layers may vary from layer to layer.
  • the printed circuit board may include six (6) conductive layers 406a-406f, a first conductive layer 406a, a second conductive layer 406b, a third conductive layer 406c, a fourth conductive layer 406d, a fifth conductive layer 406e and a sixth conductive layer 406f.
  • the first portions of the first conductive layer 406a, the third conductive layer 406c and the fifth conductive layer 406e may be of the same length and the second portions of the first conductive layer 406a, the third conductive layer 406c and the fifth conductive layer 406e may be of the same length.
  • the length of the first portion of the conductive layer directly connected to the data collection module 402 may be different than the lengths of the first portions of the other conductive layers.
  • the alternating misaligned gaps in the conductive layers of a printed circuit board may be formed in various patterns in addition to a linear pattern.
  • a plurality of misaligned gaps 502 may form a curvature pattern as shown in a top view of a printed circuit board assembly 500 in FIG. 5 .
  • a plurality of misaligned gaps 602 may form a pattern of integrally connected straight segments as shown in a top view of a printed circuit board assembly 600 in FIG. 6 .
  • FIG. 7 illustrates a top view of a printed circuit board assembly 700 showing another example of a plurality of misaligned gaps forming a pattern of integrally connected straight segments 702, according to one example.
  • FIG. 8 illustrates a top view of a printed circuit board assembly 800 having an antenna assembly, according to one example.
  • the printed circuit board assembly 800 may include a first functional area 802 and a second functional area 804 connected to a ground plane 806.
  • the first functional area 802 may comprise a data collection module and the second functional area 804 may comprise a wireless communication module.
  • the wireless communication module may include an antenna for transmitting and/or receiving data. Maintaining continuity of the ground plane 806 may provide for optimal functionality of the antenna in the wireless communication module 802.
  • RF capacitors 808 may be connected to the ground plane 806 allowing signals at RF frequencies to pass through the RF capacitors 806 freely so that the ground plane 808 and RF signals are continuous.
  • a thin metal trace 810 may be added to creating a DC connection.
  • the thin metal trace 810 may be formed of copper.
  • FIG. 9 illustrates a flow diagram for manufacturing a printed circuit board assembly having gaps in conductive layers for reducing the impact of heat generated from the circuitry located on a printed circuit board, according to one example.
  • the process may start by providing a printed circuit board 902.
  • a plurality of conductive layers may be provided on the printed circuit board where each conductive layer has a first portion and a second portion separated by a gap where gaps in the alternating conductive layers are misaligned 904.
  • the first portion of each conductive layer may have a first length and the second portion of each conductive layer may have a second length where the second length is longer than the first length.
  • the first portion of each conductive layer may be substantially thermally isolated from the second portion of each conductive layer.
  • a plurality of dielectric layers may be provided on the printed circuit board where each dielectric layer of the plurality of dielectric layers is disposed between a pair of conductive layers in the plurality of conductive layers 906.
  • Circuitry such as a wireless communication module, may then be provided on the printed circuit board 908 for transmitting and receiving data over a wireless communication link.
  • a data collection module may be provided on the printed circuit board 910 for monitoring, measuring or collecting data.

Landscapes

  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Structure Of Printed Boards (AREA)
  • Production Of Multi-Layered Print Wiring Board (AREA)
  • Manufacturing & Machinery (AREA)
EP14715739.0A 2013-03-10 2014-03-06 Thermal isolation in printed circuit board assemblies Not-in-force EP2974562B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US13/792,092 US9232640B2 (en) 2013-03-10 2013-03-10 Thermal isolation in printed circuit board assemblies
PCT/US2014/021293 WO2014164215A1 (en) 2013-03-10 2014-03-06 Thermal isolation in printed circuit board assemblies

Publications (2)

Publication Number Publication Date
EP2974562A1 EP2974562A1 (en) 2016-01-20
EP2974562B1 true EP2974562B1 (en) 2016-12-21

Family

ID=50440817

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14715739.0A Not-in-force EP2974562B1 (en) 2013-03-10 2014-03-06 Thermal isolation in printed circuit board assemblies

Country Status (6)

Country Link
US (1) US9232640B2 (enrdf_load_stackoverflow)
EP (1) EP2974562B1 (enrdf_load_stackoverflow)
JP (1) JP6049916B2 (enrdf_load_stackoverflow)
KR (1) KR101722586B1 (enrdf_load_stackoverflow)
CN (1) CN105009694B (enrdf_load_stackoverflow)
WO (1) WO2014164215A1 (enrdf_load_stackoverflow)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9664569B2 (en) * 2015-05-15 2017-05-30 Google Inc. Circuit board configurations facilitating operation of heat sensitive sensor components
US11006513B1 (en) * 2019-10-30 2021-05-11 Deere & Company Electronic assembly having sectional thermal management

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5652042A (en) 1993-10-29 1997-07-29 Matsushita Electric Industrial Co., Ltd. Conductive paste compound for via hole filling, printed circuit board which uses the conductive paste
US8280682B2 (en) * 2000-12-15 2012-10-02 Tvipr, Llc Device for monitoring movement of shipped goods
DE10013936A1 (de) * 2000-03-21 2001-09-27 Bodenseewerk Geraetetech Filteranordnung
US6646886B1 (en) 2002-04-12 2003-11-11 Cisco Technology, Inc. Power connection structure
US7545272B2 (en) 2005-02-08 2009-06-09 Therasense, Inc. RF tag on test strips, test strip vials and boxes
US20080170378A1 (en) 2007-01-17 2008-07-17 Cheng-Yi Ou-Yang Circuit structure having independent ground plane layouts implemented in circuit board
FR2913173B1 (fr) * 2007-02-22 2009-05-15 Airbus France Sa Carte electronique et aeronef la comportant
US8073503B2 (en) * 2007-11-06 2011-12-06 Qualcomm Incorporated Personal health modules supported by portable communication devices
US8411442B2 (en) 2010-09-09 2013-04-02 Texas Instruments Incorporated Vias in substrate between IC seat and peripheral thermal cage

Also Published As

Publication number Publication date
CN105009694A (zh) 2015-10-28
JP6049916B2 (ja) 2016-12-21
KR20150127186A (ko) 2015-11-16
KR101722586B1 (ko) 2017-04-03
US20140254108A1 (en) 2014-09-11
WO2014164215A1 (en) 2014-10-09
US9232640B2 (en) 2016-01-05
EP2974562A1 (en) 2016-01-20
CN105009694B (zh) 2018-01-09
JP2016510951A (ja) 2016-04-11

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